National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

Fair

34°F

1°C

Humidity 85%
Wind Speed SW 8 mph
Barometer 30.24 in (1024.0 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 4 Mar 9:56 pm EST
Extended Forecast for

South Dennis MA

  • Tonight

    Tonight: Areas of fog between 1am and 2am. Areas of dense freezing fog after 2am. Otherwise, mostly cloudy, with a low around 31. Calm wind.

    Low: 31 °F

    Partly Cloudy
    then Areas
    Dense
    Freezing Fog
    and Areas Fog

  • Thursday

    Thursday: Rain likely, mainly after 4pm. Areas of fog before 1pm. Areas of dense freezing fog before 7am. Otherwise, cloudy, with a high near 39. Calm wind becoming northeast 5 to 9 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 39 °F

    Rain Likely
    and Areas
    Dense
    Freezing Fog

  • Thursday Night

    Thursday Night: Rain. Low around 36. East wind 11 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 36 °F

    Rain

  • Friday

    Friday: Rain, mainly before 1pm. High near 39. East wind around 14 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 39 °F

    Rain then
    Rain Likely

  • Friday Night

    Friday Night: Cloudy, with a low around 33. Light and variable wind.

    Low: 33 °F

    Cloudy

  • Saturday

    Saturday: Cloudy, with a high near 47. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 21 mph.

    High: 47 °F

    Cloudy

  • Saturday Night

    Saturday Night: A chance of rain after 8pm. Cloudy, with a low around 38. Southwest wind 7 to 9 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.

    Low: 38 °F

    Chance Rain

  • Sunday

    Sunday: A chance of rain before 8am. Partly sunny, with a high near 47. West wind 3 to 7 mph. Chance of precipitation is 30%.

    High: 47 °F

    Chance Rain
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 35. Southwest wind 3 to 6 mph.

    Low: 35 °F

    Partly Cloudy

Detailed Forecast

Tonight
Areas of fog between 1am and 2am. Areas of dense freezing fog after 2am. Otherwise, mostly cloudy, with a low around 31. Calm wind.
Thursday
Rain likely, mainly after 4pm. Areas of fog before 1pm. Areas of dense freezing fog before 7am. Otherwise, cloudy, with a high near 39. Calm wind becoming northeast 5 to 9 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Rain. Low around 36. East wind 11 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Friday
Rain, mainly before 1pm. High near 39. East wind around 14 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Cloudy, with a low around 33. Light and variable wind.
Saturday
Cloudy, with a high near 47. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 21 mph.
Saturday Night
A chance of rain after 8pm. Cloudy, with a low around 38. Southwest wind 7 to 9 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.
Sunday
A chance of rain before 8am. Partly sunny, with a high near 47. West wind 3 to 7 mph. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 35. Southwest wind 3 to 6 mph.
Monday
Sunny, with a high near 48. Southwest wind 6 to 8 mph.
Monday Night
Mostly clear, with a low around 37. Southwest wind around 5 mph.
Tuesday
Mostly sunny, with a high near 49. Southwest wind 6 to 9 mph.
Tuesday Night
Mostly cloudy, with a low around 38. Southwest wind 6 to 8 mph, with gusts as high as 21 mph.
Wednesday
A chance of rain. Mostly cloudy, with a high near 49. Southwest wind 9 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Dennis MA
 41.69°N 70.16°W (Elev. 7 ft)
Last Update:
9:49 pm EST Mar 4, 2026
Forecast Valid:
10pm EST Mar 4, 2026-6pm EDT Mar 11, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation